A bill proposing to lower the drinking age from 21 to 18 would go through the following process:
1. A member of Congress would propose the bill, which could begin in either the House or Senate.
2. The bill would be assigned to a committee for review. It would then go to a floor debate, controlled by the chamber's presiding officer.
3. If passed, the bill would then go to the other chamber and repeat the committee and floor debate process.
4. If passed by both the House and Senate, the bill would go to the President. If signed, it would become law. The President could also veto the bill, sending it back for possible override.